PUBLICATION
Mixture toxicity of thiophanate-methyl and fenvalerate to embryonic zebrafish (Danio rerio) and its underlying mechanism
- Authors
- Wang, Y., Lv, L., Xu, C., Wang, D., Yang, G., Wang, X., Weng, H., Wang, Q.
- ID
- ZDB-PUB-201212-25
- Date
- 2020
- Source
- The Science of the total environment 756: 143754 (Journal)
- Registered Authors
- Keywords
- Aqueous toxicology, Biomarker, Pesticide mixture, Synergetic toxicity
- MeSH Terms
-
- Animals
- Ecosystem
- Embryo, Nonmammalian/metabolism
- Larva
- Nitriles
- Oxidative Stress
- Pyrethrins
- Thiophanate/metabolism
- Water Pollutants, Chemical*/metabolism
- Water Pollutants, Chemical*/toxicity
- Zebrafish*
- PubMed
- 33302067 Full text @ Sci. Total Environ.
Citation
Wang, Y., Lv, L., Xu, C., Wang, D., Yang, G., Wang, X., Weng, H., Wang, Q. (2020) Mixture toxicity of thiophanate-methyl and fenvalerate to embryonic zebrafish (Danio rerio) and its underlying mechanism. The Science of the total environment. 756:143754.
Abstract
Though pesticide mixtures can reflect the real-life situation in the water ecosystem, the quantification of their toxicity is still not fully understood. Combined effects of thiophanate-methyl (THM) and fenvalerate (FEN) on embryonic zebrafish (Danio rerio) and underlying mechanism were conducted in this study. Results showed that the 96-h LC50 values of THM to D. rerio at different growth periods ranged from 12.1 to 26.1 mg L-1, which were lower in comparison with those of FVR ranging from 0.025 to 2.8 mg L-1. Mixture of THM and FVR exhibited a synergetic response to zebrafish embryos. Activities of Cu/Zn-SOD, POD, caspase 3 and caspase 9 were significantly different in most of single and mixture administrations compared with the control group. In addition, five genes (P53, Cu/Zn-sod, crh, ERα and IL-8) associated with oxidative stress, cellular apoptosis, immune system and endocrine system showed greater variations of expressions when administrated to pesticide mixtures compared with single chemicals. Our experimental results exhibited that mixtures of thiophanate-methyl and fenvalerate produced higher toxicity towards aqueous vertebrates than when determined singly. Collectively, upcoming environmental risk assessments established according to single administrations might not be enough to protect the water ecosystem.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping